There are A LOT of expansions. and it gets even more crazy if you have a lot of custom content! and there's plenty more full expansions on the way... just take a look at the sims 1!

a dedicated sims pc that loads straight to the sims would be my idea of heaven =D im totally in love with the sims hehe. i installed all but bon voyage (wasnt out then) on my sisters PC and it didn't take too long but yeah at one point i had like 20 gigs of sims 2 stuff and the game would just lag sooo much. actually even without custom content its lagging like hell at the moment, soooo need to update, stupid g force fx5200 pos!